Can my F-2 spouse register for just a class or two?
F2 visa holders may enroll as part-time students at the university.

How long can my son or daughter stay on a dependent visa (F-2, J-2, H-4)?
When the dependent turns 21, he or she must apply for his or her own visa status.

Can my F-2 wife (or husband, or child) work?
As long as he/she has F-2 status, he/she cannot work.